Cord knotter for harvesting machines



i (No Model.) g 6 Sheets-Sheet 1.

M. A. KELLER.

001m KNOTTER FOR HARVESTING MACHINES.

No. 525,463. Patented Sept. 4, 1894.

rm: ncnms PEYERS cc. PHOTO-LITHG. WASHANGTON. a 4L (No Model.) 6Sheets-Sheet 2.

M. A. KELLER.

c0111) KNOTTER FOR HARVESTING MACHINES.

No. 525,463. Patented Sept. 4, 1894.

@ 'l illlili v *I I .m I

LQQMM;

I I flJJZZZw (No Model.) 6 Sheets-Sheet 3.

M. A. KELLER. CORD KNOTTER FOR HARVESTING MACHINES. No. 525,463.

noams mas ca. wom|m., WASHINGTON: :3, cv

(No Model.) 6 SheetsSheet 4 1 M. A. KELLER.

CORD KNOTTER FOR HARVESTING MACHINES. No. 525,463. Patented Sept. 4,1894.

FEE-ill 7m: wens Prrzns co, mo'mumo. wnsmncron. n. c.

(No Model.) 6 Sheets8heet 5.

M. A. KELLER. CORD KNOTTER FOR HARVESTING MACHINES.

Patented Sept. 4, 1894.

- Li ,H. E

tar

l/ZZCZZ n4: uonms man so, wo'roumo. wunmcrow o. c.

(No Model.) 6 Sheets-Sheet 6.

M. A. KELLER.

CORD KNOTTER FOR HARVESTING MACHINES.

No. 525,463. Patented Sept. 4, 1894.

lNVENTOH m: aoams PUEIS 00., PHOTO'UTHO wmmowu. a c.

UNITED STATES PATENT OEEiCE.

MOSES A. KELLER, OF BATAVIA, NEW YORK.

CORD-KNOTTER FOR HARVESTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 525,463, datedSeptember 4, 1894.

Application filed April 25, 1892. Serial No. 430.616. (No model.)

To all whom it may concern:

Be it known that I, Moses 'A. KELLER, a citizen of the United States,residing at Batavia, in the county of Genesee and State of New York,have invented a new and useful Improvement in Cord-Knotters forHarvesting-Machines, of which the followingis a specification.

My invention relates to improvements in which a rotary cord holder isjournaled about a rotary knotter, and it relates further to variousother improvements in combination with said cord holder and knotter, allof which I attain by the mechanism illustrated in'the accompanyingdrawings, in which Figure 1, is a right hand side view with all itsoperating parts in their normal position. Fig. 2, is a bottom plan ofFig. 1. Fig. 3, is a sectional view taken through the line B. B. of Fig.1, showing the top of the cord guide and thebreast-plate, and a portionof 'the cord holder in its normal position. Fig. 4 is a verticalsectional view taken through the lines D, D, of Fig. '7 and line Y, Y,of Fig. 2. Fig. 5, is a left hand side view, and Fig. 6, is a bottomplan of Fig. 5, with the working parts all in their normal position.Fig. 7, is a front side view, and Fig. 8, a rear side view. Fig. 9.is arear side view of the knotter, separated from the frame. Figs. 10. and11. are sectional detailviews. Fig. 12 is a bottom plan of Fig. 7, butwith cord andpoint of binding needle in position just at the point wherethe looping jaws begin to start, and Fig. 13, is a bottom plan of Fig.8, which is identical with Fig. 12, but shows the position of the cordon the looping jaws as the same appears at the point where the ends ofthe cord forming the band are drawn between the jaws and just at thepoint where the jaws begin to close on the cord. Fig. 14. is a righthand side View with a portion of the cord guide removed to show theposition of the cord just at the time the looping operation begins. Fig.15. is a vertical sectional view taken through the line A. A. of Fig. 1,with the looping jaws removed from the knotter spindle to better showthe construction and position of the cam that controls the pivotedlooping jaw. Figs. 16. and 17. are sectional views of the looping andcord holding mechanism taken through the line F. F. of Fig. 14, and

Fig. 18 is a bottom plan of the combined cam plate and cord guide, andwhich forms the housing for the cord holder cup, and clamping shoe, andas-the same appears when detached from the knotter frame and otherparts, and Fig. 19 is a view of the reverse.

side of same plate as Fig. 18.

Similarletters refer to similar parts throughout the several views.

The main frameA. is bolted by the bolt j, to the breast plate I, asshown in Fig. 4. Journaled in its upper end is the main operating shaftB, to which is affixed the knotter operating wheel 0, and thereby iscaused to rotate with the shaft, and gives motion to all the knottingmechanisms as will be shown hereinafter. The sleeve G. of the cordholder, and the knotter spindle F. are journaled in the main frame,transversely to the shaft B,

but the spindle F, is journaled in the sleeve G, so that its motion isindependent of the sleeve. A pinion K, is rigidly secured upon thespindle F, near its upper end as shown in Fig. 4. This pinion .has justenough cogs to correspond with the. cogs c on the face of the wheel 0,to cause it to make one complete revolution to one revolution of thewheel 0, no more no less, and is locked in its normal position by theflange b, that is on the face of the wheel 0, which bears against adelay surface n, formed on the pinion see Fig. 5, and 15. The pinion M.is secured. to the sleeve G. at the upper end as seen in Fig. 4, and atthe. lower end of the sleeve is formed the crown shaped cord holder D. Asupplemental double pinion L, is journaled upon the spindle N, at therear of the frame, and its upper portion has just as many cogs as pinionK, and is engaged and rotated by the same segment cogs c, of the wheel0, and therefore makes but one complete revolution, to one revolution ofwheel 0, and is locked in its normal position in the same way as is thepinthis construction it will be seen that the pin- I IOO direction tothe rotation of the knotter. The

object of this construction is, to do away with the usual knot stripperarm by having the looping jaws stand in the direction of the dis- 5charge of the bundle, while in their normal position as seen in Figs. 1,and 2, so that the loop is pulled oft the jaws as the bound bundle isdischarged, but while the jaws of the knotter must stand in th sposition to allow the loop to pull off, it was with no little diffieultyto get the ends of the cord forming the band between the opened jaws intime and draw them in farenough, before the jaws must close,but thisdifficulty is entirely overcome by the cord holder journaled concentricwith the knotter spindle, and rotating in the opposite direction to theknotter, and thereby positively draw the cord between the jaws as willbe fully pointed out farther on.

The combined cam plate, which is shown by the drawings Figs. 18 and 19forms the cams E U and the cord guide H, and cord finger H, and theseparts thus become all integral. This plate also forms a housing on therear side of the cord holder cup, into which are arranged the cordclamping shoe J and its spring P, as seen in Figs. 16 and 17, the lugs 4and 5, form means by which the plate is bolted unto the frame A, by thebolts t and r, the cam part U, fits down into the cord holder cup D, asseen in the sectional view Fig. 15, and. is provided with a holeconcentric or in line with the hole in the sleeve of the cord holdercup, through which passes the knotter spindle, and when the knotter isin its place and rotated the little roller on the pivoted knotter jaw,alternately comes in collision with the cams U and E, and thereby thelooping jaws are opened and closed at the proper time.

In order that the rift S, in the breast-plate may be unobstructed by acord rest, I have formed a cord rest it, on the base of the looping jawf, as shown in Fig. 14, and several others, and have provided a cordguide H, to guide the cord unto the finger or rest, the peculiarconstruction and shape of the rest h, allows the cord to slip off, anddrop onto the looping jaws f and g, as soon as the same are in aposition or at right angle to the cord, see Fig. 11, thus doing awaywith the stationary rest over the rift in the breast-plate, and makingabsolutely sure of the cord being secured by the looping jaws. The camplate forms a circular recess at its lower edge, on which the cordholder cup bears, see Fig. 4, and also forlnsa recess for the cord clampJ. and spring P, see Figs. 16 and 17, and a tension screw W. is threadedin said plate to regulate the proper amount of tension to hold the cordagainst the cup D. A flange V. is formed at the base of the cup toprevent the cord from getting up in the bearing, and to form a guide forthe clamp J. The crown shaped cup D. 6 is provided with two (2) cordholding notches d, to securethe cord and carry it around unof the flangeand thereby forming in conjunc- 15 tion with the notched flange a shearcutteraa the cord holder cup rotates and carries the cord against theknife in the manner hereinafter more fully described. There isa notch qformed in the breast-plate I, the walls of which prevent the cord fromslipping oi the looping jaws until the latter are come to their normalposition.

The operation of the mechanism as a wholo while tying a knot, is asfollows: The normal position of the knotter, with one end of tillbinding cord, is shown in Figs. 1, and 101. When the needle, 0, hasplaced the cold around the grain or gavel the other end of the cordforming the band is also brought in the same position on the cord resth, as shown in Figs. 14, and 12. While the needle was thus in motion theknotter operating wheel C, has also been set in motion and is now intheposition shown in Fig. 14. The cogs 0, will ne 95 fall in gear withthe knotter operating pin- 1 ion K, and set in motion the looping jaws fand g, and as soon as the cord rest h, hll moved past the cord guide H,the cord drop. unto the looping jaws, as shown in Fig. 11, but therewill be two strands of the cord instead of but one as seen in saidfigure, and when the looping jaws have thus secured the cord, the cogs,c, of wheel 0, now fall in gas! with the pinion L, and start thereby thecord holder cup D, which turns in the opposite direction to the loopingjaws. See arrow point! Fig. 17. The end of the cord held by the holderis not carried around with the holder cup but as the holder rotates itpays out the cord to the knotter, while the other strand of the cord iscaught by the notch d, and carried around and clamped between theperiphery of the cup D, and clamp J, as seen in Fig. 17, and 16. In Fig.16, the looping jaws an in position and separated to allow the 00dholder to draw the ends of the cord between the jaws and when the latterhave reached the point shown in Fig. 13, the loop is completed and thejaw g, is closed upon the end. of the cord by the rollerscoming incollisiol with the cam E, as seen in Fig. 13, and as soon as saidjawsare closed, the holder cup carries the cord against the knife R,seeFig. 13, and thus severs the cord while the old and is released,and asthe cogs c, passout of goat with the pinion L, the holder cup hasreached its normal position and the loop of the applied band pulls 01fthe jaws and completes the knot as the bound bundle is'carried out bythe ejecting mechanism. In the mean time the binding needle has alsoreturned to its r i mt normal position and again placed the cord on thecord rest it, as seen in Figs. 1, and 10, and the cord is now inposition to receive the grain for the next bundle.

The ends of the cord at a, in Figs. 12, 13, and 14 represent thebandthat would be around the bundle while the knotter is in operationtying the knot.

Having thus fully described the construction and operation of mymechanism, what I claim as my invention, and desire to secure by LettersPatent, is-

1. In a knotting mechanism for grain binders, a rotary knotter, combinedwith an intermittently rotating cord holder journaled on the knotterspindle and rotating in the direotion opposite to the knotter, andhaving a crown shaped cup overhanging the knotter jaws, cord holdingnotches formed in the flange of said cup, a stationary guide to conductthe cord into the notches, a yielding cooperating clamping shoe toconfine the cord into said notches and clamp the same upon the outsideof the periphery of the holder cup, a stationary cam within said cup toopen and close the knotter jaws, and a stationary knife arranged withinsaid cord holder cup and operating in conjunction with said notchedflange, all combined and arranged for operation substantially as shownand described.

2. In combination with the intermittently rotating cord holder having acrown shaped cup with cord holding notches formed in the flange of thecup, of the rotary knotter j0urnaled in the said cord holder, and havingits looping jaws rotating within said cup and in a direction opposite tothe rotation of said cord holder, said looping jaws of the knotterpointing in the direction of the discharge of the bound bundle while inthe normaliposition, and making one complete revolution to each tyingoperation, a guide and clamp to confine and hold the cord in the notchesof the said flanged cup,- and a stationary knife arranged within saidcup and operating in conjunction with said flange.

3. In combination with the rotary knotter having its looping jawspointing in the direction of the discharge of the bound bundles while inthe normal position, of the intermittently rotating cord holderjournaled about the knotter spindle and rotating in the directionopposite to the rotation of the knotter jaws, and having a crown shapedcup overhanging the knotter jaws, cord holding notches formed in theflange of the cup surrounding the knotter jaws, a stationary guide toconduct the binding cord into the notch, a yielding cooperating guideand clamp to hold and confine the cord .in the notch, a knife arrangedwithin said cup to sever the binding cord at the proper time, and a camto open and close the knotter .jaws atthe proper time as described alsoarranged within said cord holder cup. 7

4. The combination with the rotary knotte having its looping jaws atright angle or nearly so to its spindle, and pointing in the direotionofthe discharge of the bound bundle while in the normal position, of thecrown shaped cord holder cup journaled aboutthe knotter axis androtating in the directionopposite to the rotation of the knotter jawscord holding notches formed in the flange of said cup, a stationaryguide to conduct the binding cord into the notches, a yieldingcooperating guide and clamp to confine and hold the cord in the notches,a stationary knife arranged within said cord holder cup and operating inconjunction with the notched flange of said cup to sever the cord as thesame is carried against said knife, and a stationary cam arranged withinsaid cord holder cup to positively open and close the knotter jaws asthe latter rotate.

5. The combination with the knotter frame, the main operating shaft andthe knotter operating wheel mounted on the shaft, of the rotary knotterand intermittently rotating cord holder journaled in said frame in acommon bearing and rotating in a direction opposite to each other, asupplemental pinion also journaled in said frame and geared with theoperating pinion of the cord holder, a pinion fast on the knotterspindle, and the knotter operating wheel having a single beveled toothedsegment on its face to engage and rotate positively both theknotterpinion and the supplemental pinion.

6. The combination with the knotter frame,

IOC

and the rotary knotter, of the intermittently rotating cord holderjournaled in said frame, about the knotter spindle, and having a crownshaped cup overhanging the knotter jaws and rotating in a directionopposite to the rotation of the knotter jaws, cordv holding notchesformed in the flange of said cup with their opened side projectingtoward the binding receptacle or the grain in the receptacle, astationary cord guide secu red to the knotter frame to guide the bindingcord into said notches, a yielding cooperating guide and clamp movablysecured to the said stationary guide plate to confine and hold the cordin the notches and against the outside periphery of the cord holder cup,a. knife secured to said guide plate, and bent over the notched flangeand against the same on the inside of the cup to form a shear cutter inconjunction with the notched rotating flange of the cord holder cup, andthe stationary cam arranged within said cord holder cup to open andclose the knotter jaws and secured to the stationary guide plate orframe.

' 7. In combination with the main frame, and knotter operating wheel, ofthe rotary knotter and rotary cord holder journaled in said frame in thesame bearing, a pinion fast on the knotter spindle engaged directly androtated positively by the knotter operating wheel, a pinion secured tothe cord holder sleeve between the said knotter pinion and naled in saidframe andadapted to gearwith said pinion on the cord holder sleeve, and

engaged directly and rotated positively by the knotter operating wheel,substantially as Ehgwn and described for the purpose speci- 8. Incombination with the rotary knotter, of the intermittently rotating cordholder cup journaled about the knotter spindle and having a rotation inthe direction opposite to the rotation of the knotter, and having acrown shaped cup overhanging the knotter jaws, cord holding notchesformed in the edge of the flange of said cup, a stationary cam platepartially surrounding said cord holder cup and overlapping the notchedflange, a yielding clamping shoe having a concave surface fitting theoutside periphery of the notched flange of the holder cup and arrangedwithin said cam plate, a spring bearing against said shoe, and a screwsecured into the cam plate and bearing on said spring, whereby the cordholding tension may be regulated astationary cord guide formed on saidcam plate extending around on the needle side of the cord holder cup toguide the binding cord into the notches of said cup, cams within saidcup to positively open and close the knotter jaws as the latter rotate,and a knife within said cup to sever the applied band between thenotched flange and the knotter jaws as the latter come to rest, as andfor the purpose set forth.

9. In combination with the rotary knotter making one complete revolutionto each tying operation, and having its looping jaws pointing in thedirection of the discharge of the bound bundle while in the normalposition with rigid cord rest at the base of the jaw, of theintermittently rotating cord holder cup journaled on the knotterspindle, and having the crown shaped cup overhanging the knotter' jawsand said cord rest of the knotter, and the cord guide extending down atthe needle side under said cup unto the cord rest to guide and conductthe cord unto the cord holder and said cord rest, said guide having asupporting plate extending around the knotter to the side opposite theguide, all substantially as shown and described.

10. In combination with the main frame and knotter operating wheel, ofthe rotary knotter and the intermittently rotating cord holder journaledin said frame in a common bearing and each having an independentmovement, a pinion having a delay surface and fast on the knotterspindle, a supplemental pinion having a delay surface, and journaledindependently in said main frame, and gearing with a correspondingpinion having twice as many cogs as said supplemental pinion and fast onthe sleeve of the cord holder cup, and the single knotter operatingwheel, having the single bevel toothed se ment and a delay rim to engageboth the knotter pinion and the supplemental pinion and rotate and lockboth said pinions posi- .tively.

1].. The combination of the rotary crown shaped cord holder cup providedwith our! holding notches on the flange forming the 1 cup, and hooks oneach side of the notch, and j ournaled about the knotter spindle, andovenhanging the knotter jaws, and each notch 1, adapted to alternatelyengage both ends d the applied hand during the binding operation, andoperating in conjunction with the yielding clamp and stationary knife tore lieve the old end and simultaneously clan, i and cut the new end. 112. The combination with the rotary knotter of the intermittentlyrotating cord holder, In journaled on the knotter spindle, and havingthe crown shaped cup overhanging the knot 1. ter jaws, and rotating inthe direction opposite to the rotation of the knotter jaws, and V Ihaving cord holding notches formed in the edge of the flange of said cupwith their opened side projecting toward the grain or bindingreceptacle, a stationary cord guide and a moving binding needle carryingand guiding the binding cord into said notchel of the cord holder, ayielding cooperating -v f guide and clamp to confine the cord intoth.notch and clamp it on the outside periphery of the cord holder cup, aknife arranged with-' in said cup to sever the cord between the in *5side of the cup and the knotter jaws, and e stationary cam within saidcup to open and. close the knotter jaws at the proper time as the latterrotate.

13. The combination of the conical shaped I. cord holder cup journaledabout the knotter spindle and overhanging the knotter jlwl, and havingthe cord holding notches or books to engage the needle end of thebindingcord and carry it under the clamping shoe between to theperiphery of the cup, and against the knife on the inside of the cup tosever the L plied band from the needle end of the this: ing cord. j,

14. A rotary cord holder for grain binders rte havina a conical shapeddisk with its apex next the spindle side, and cord holdinghookl upon theedge of the disk combined with a stationary guide and clamp to hold thecord upon the outside periphery of the disk. I 15. In combination withthe rotary knotter, rotary cord holder disk and their operating pinions,of the knotter operating wheel having upon its face but a single bevelsegment and delay rim, adapted to engage said pinion we; and rotate boththe knotter and holder difl, in the manner substantially as specified;16. In combination with the rotary knotfil" and rotary cord holder disk,journaled in & common bearing, and their operating pinion, I of a singleactuating wheel having but a single segment and delay rim adapted to onsaid pinions and rotate both the knotter-and said disk in oppositedirections, in the manner substantially as and for the purpole 1mspecified. 17. The combination of the rotary crow! shaped cord holderdisk, and rotary knotter with a rigid and pivoted jaw journaled in a itcommon bearing and their operating pinions, the stationary cam withinthe crown disk for controlling the pivoted looping jaw, and the singleactuating wheel having but a single the pinions, of the single actuatingwheel having but a single gear segment and delay rim adapted to engagesaid pinions an'd rotate the knotter and holder periodically as I 5 gearsegment and delay rim adapted to endescribed and lock them in theirnormal pogage said pinions and rotate both the knotter sition.

Egg disk in the manner substantially as speci- M KELLER 18. Incombination with the rotary knotter Witnesses:

and rotary cord holder and their operating JOHN R. KELLER, pinionshaving the delay shoes for locking IDA M. KELLER.

